MR. SCOTT SMITH, P.A.
Physician Assistant at 4 Ave, San Diego, CA

6552346, Apr 22, 2003

Apr 12, 2001

09/834377

Victor V. Verbinski - La Jolla CA
Scott T. Smith - San Diego CA
Kenneth H. Valentine - San Diego CA
Victor J. Orphan - Leucadia CA

Science Applications International Corporation - San Diego CA

G01N 2310

2503581, 2503601, 378 57, 378198

A system and method of density detection in a target object involve irradiating the target object, detecting a first and second discrete number of photons penetrating the target object through respective first and second prescribed volumes and entering respective first and second radiation detectors. First and second numbers of photons detected by the first and second radiation detectors are counted, and a display output signal is generated in response to the first and second numbers. A graphical representation of the densities within the first and second volumes of the target object is displayed.

6356576, Mar 12, 2002

Nov 29, 1999

09/450919

Scott T. Smith - San Diego CA

Cymer, Inc. - San Diego CA

H01S 308

372102, 359366, 359355, 359723, 359731

A catadioptric anamorphic beam expanding telescope expands an optical beam in a first axis substantially perpendicular to the beam propagation axis, and deflects it in a plane substantially perpendicular to the first axis. The beam expanding telescope can include reflective, refractive, and combined reflective/refractive elements. An embodiment includes an off axis convex spheric reflector and an off axis combined reflective/reflective optical element, commonly known as a Mangin mirror, incorporating a refractive first surface and a reflective rear surface, which compensate for aberrations introduced by the off axis deflection of the beam. The telescope is particularly useful for deep ultraviolet (DUV) applications at wavelengths shorter than about 250 nm. In some applications, the telescope illuminates a diffraction grating or other wavelength dispersive element, aligned to retroreflect a preferential wavelength, thereby providing wavelength narrowing. In some applications a combined telescope and diffraction grating are incorporated within a laser optical cavity, thereby narrowing the output wavelength spectrum of the laser.